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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A substance which radiates light when heated to high temprature is said to be |
| Answer» SCENT....HOPE it is HELPFUL | |
| 2. |
(x-1)(x-2)/√x.differentiate it |
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Answer» -2)/√x(x²-2x-x-2)/√x(x²-3x+2)/√xd/dy{x^3/2 -3x^1/2 -2x^-1/2}3/2x^1/2 -3/2 x^1/2 +1/2x ^3/2 |
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| 4. |
Describe an experiment to prove that sound cannot travel through vacuum |
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Answer» annot travel through avacuum. A vacuum is an area without any air, like SPACE. So sound cannot travel through space because there is no matter for the vibrations to work in. Sound requires medium to travel. You can understand this by:THE BELL-JAR EXPERIMENT For this *TAKE a jar ,put an electric bell inside it .* CREATE vacuum in it.*Turn on the bell .*You will NOTICE that no sound can reach your ear.Because sound needs a medium to propogate. Hope it helps! |
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| 5. |
A car travel 15meter per second at 4 hours ,what is total distance |
| Answer» 15 m/stime = 4 hours =4 × 60 × 60 = 14400 secondsdistance traveled = speed × time = 15 × 14400 = 216000 m = 216 kmtotal distance is 216 KM | |
| 6. |
What pigment only present in plants makes photosynthesis possible |
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Answer» hyll PIGMENT only PRESENTS in PLANTS Becuase it has Green COLOR TISSUE. |
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| 7. |
List two advantages of friction |
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Answer» ntage of FRICTION : 1) Wear and Tear of TIRES and soles of our shoes is due to friction 2) Friction produces heats Which decreases effiency of the vehicle. HOPE this helps you |
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| 8. |
A concave lens of focal length 15 cm forms an image 10 cm from the lens . How far is the object placed from thi lens ? Draw the ray diagrams |
| Answer» GRAM U can DRAW | |
| 9. |
HEY GUYS ....VERY VERY GOOD MORNING TO ALL... ...I NEED A HELP.......HERE IS MY QUESTION.......Give reason:-▶️The shape and size of bright side of moon appears to change (gradually) everyday....#best answer will be mark as brainliest answer.......be quick.... |
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Answer» f of the Moon that POINTS toward the SUN looks BRIGHT because it is lit by sunlight. The Moon appears to change SHAPE because we see different amounts of the lit part as the Moon orbits Earth. When the Moon is between Earth and the Sun, the lit side is hidden from us. As it MOVES around Earth, more and more of the lit side comes into view. Then it begins to disappear again. |
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| 10. |
Hoe to get good IIT.,, by,??????????????? |
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Answer» I KNOW?!?!?!?!?,?, |
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| 11. |
Personal opinion on weight of five person in moon and mars |
| Answer» E!WEIGHT ON MOON IS 1/6 OF REAL WEIGHT ON EARTH | |
| 12. |
Difference between sensible heat and latent heat in heat load sheet |
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Answer» your ANSWER ✌️LATENT and SENSIBLE heat are types of energy released or absorbed in THEATMOSPHERE. Latent heat is related to changes in PHASE between liquids, gases, and solids. Sensible heat is related to changes in temperature of a gas or object with no change in phase. I think it will help u✌️ |
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| 13. |
When a liquid getting converted into solid then the latent heat is what? |
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Answer» Ex-Ice when it converts from water to be ice. The latent heat is ABSORBED so there is no RISE in TEMPERATURE. This is also called latent heat of fusion.Hope it HELPS u !!mark me as BRAINLIEST.. |
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| 14. |
A 5 kg ball is thrown up with a speed 10m/s (a) Find its kinetic energy at time of thrown. (b) Find its potential energy when it reaches the highest point (c) Height=? (d) What is the work done by the force of gravity? |
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| 15. |
Plzz help me in this |
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Answer» man, m = 60kgHeight of one step = 20cmHeight of 30 steps = 20 x 30 = 600CM = 6mTime = 40 sec..WORK done = .POWER = .746 watt = 1 horse power1 watt =........then 90 watt = |
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| 16. |
Why do we see the sun two minutes before sunrises and two minutes after sunset |
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Answer» because of REFRACTION. |
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| 17. |
Out of the following dash is the proper image from measuring the temperature of water |
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| 18. |
What is impulse. what do you mean by free body diagram |
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Answer» u apply a force for a CERTAIN amount of time, you CREATE an impulse.Impulse equals the force applied MULTIPLIED by the time it was applied.HERE'S THE EQUATION:-Impulse = FtA free-body diagram is a representation of an object with all the forces that act on it. The external environment (other objects, the floor on which the object sits, etc.), as well as the forces that the object exerts on other objects, are omitted in a free-body diagram. |
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| 19. |
When a sound is reflected from a distant object an echo is produced. Let the distance between the reflecting surface and the source of sound production remains the same.Do you hear echo sound on a hotter day |
| Answer» HEAR the ECHO SOUND in HOTTER DAYS | |
| 20. |
A cylindrical vessel, whose diameter and height both are equal to 30 cm, is placed on a horizontal surface and a small particle P is placed in it at a distance of 5.0 cm from the centre. An eye is placed at a position such that the edge of the bottom is just visible (see figure 18-E8). The particle P is in the plane of drawing. Up to what minimum height should water be poured in the vessel to make the particle P visible ? |
| Answer» DIAMETER of cylindrical vessel =30cm R= 15cm H= 30cm SIN i/ sinr = 3/4 sin i = 3/4 X √2 since r= 45 °the point can be seen only when r= 45° at point of refraction Let x be the distance of point from X tan 45 = x+10/d d= x+10 tan i = x/d 3/√23= d-10/d since values of sin i =3/4√2 -> tan i = 3/√23 3/√23-1= - 10/d d= √23 x10/ √23- 3=26.7cm | |
| 22. |
Steam is passed into 54 g of water at 30° searches tell the temperature of the mixture becomes 90°C if the latent heat of steam is 536 cal per gram the mass of mixture will be |
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| 23. |
Please answer pic is also attatched |
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Answer» your ANSWER MATE..PLEASE FOLLOW the ATTACHMENT.. |
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| 24. |
Deduce Xnth=u+a/2(2n-1),where symbols have their usual meanings |
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| 25. |
static friction coefficient is 0.4 on an object of mass 5kg. if force of 1N is applied, find the force of friction |
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| 26. |
What is angular displacement in radian of a second hand of a clock in 10 second ? |
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Answer» . .............. |
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| 27. |
a man weighing 50 climbs up vertically up to a height of 10m in 25 second calculate the power of a man is g= 9.8 metre square |
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| 28. |
A bag of wheat weighs 50kg. calculate the height to which it must be raised potential energy is 5000J.(g=10ms^2) |
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| 29. |
Helium atom emits a photon of wavelength 0.1 angstrom . Recoil energy |
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| 30. |
A satellite is launched in the equatorial plane in such a way that it can transmit signals upto 60∘ latitude on the earth. Then the angular velocity of the satellite is : |
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| 31. |
A boy is pedaling a stationary bicycle at half revolution per second. The pedals are attached to 100 turn coil with a area of 0to and placed in a uniform magnetic field of strength 0.01 t. Determine the maximum voltage generated in the coil and peak power delivered |
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Answer» ou PLEASE tell the correct value of area. There's a typo error.Correct it and ask the question again on BRAINLY. I will answer it.You simply have to USE the formula "e=wBAn"Where e=peak value of voltage.w(omega)= ANGULAR frequency.B= Magnetic inductionA=Area of cross section.n=no.of turns |
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| 32. |
Can maas be variable? if yes then how.Also mass can be negative? |
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Answer» because ...a variable-mass system is a collection of matter WHOSE mass varies with time. It can be confusing to try to APPLY Newton's second law of motion directly to such a system.NEGATIVE mass is matter whose mass is of opposite sign to the mass of normal matter, e.g. −1 kg.[1][2] Such matter would violate one or more energy conditions and show some strange properties, STEMMING from the ambiguity as to whether attraction should refer to force or the oppositely oriented acceleration for negative mass.mark this answer as brainlest PLEASE.... |
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| 34. |
The ratio of cp and cv for a gas mixture consisting of 8g of helium and 16g of oxygen |
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| 35. |
What are the factors determining liquid pressure in liquids |
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Answer» re 2 factors which determine the pressure in liquids:-1) DEPTH of the liquid (Directly PROPORTIONAL to pressure) as more WEIGHT is pressing the liquid beneath it AND2) Density of the liquid (Also Directly proportional to pressure. |
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| 37. |
I am facing south.I turn 90 degree in anticlockwise and walk 30 metre then turning north i walk 40 metre and then turning west i go 60 metre then turning left i walk 80 metre.How far am i from the starting point |
| Answer» E from STARTING is CORRECT ANSWER | |
| 39. |
If the mass of a object is 60 kgs ,what will be it's weight on moon ?????( in Newton ) |
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Answer» of 60kg on the MOON will still be 60Kg as mass is INDEPENDENT of GRAVITY, but will 'weigh' about 60 x 1.3 = 78N. The Moon's gravity (its gravitational constant) is about 1/6th that of the Earth's. Your weight on the Moon is 16.5% what you WOULD experience on Earth. |
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| 40. |
What is the displacement time graph for undamped oscillation |
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Answer» imilar to a SINUSOIDAL GRAPH if the body is starting from the mean POSITION or a COSINE curve if the body is starting from the extreme position. The first IMAGE is of sine curve while the second is of cosine curve. |
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| 41. |
three resistances each of 4 ohm are connected in the form of an equilateral triangle the effective resistance between any two corners is? |
| Answer» PE it HELPS me BRAINLIEST | |
| 43. |
Explain air pollution with example |
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Answer» the AIR contaminated by mixing harmful gases like so4 and NITRIC OXIDE |
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| 47. |
State whether the statement is true or false , If angle of incidence is 0 degree ,the angle of refraction is 90 degree |
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Answer» wer will be FALSE because ANGLE of incidence is EQUAL to angle of refraction. |
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| 48. |
True or false:if the angle of incidence is 0,the angle of refraction is 90 |
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Answer» wer will be false because ANGLE of INCIDENCE is EQUAL to angle of REFRACTION |
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| 49. |
I) Give two differences between real and virtual images? ii) If a person is standing in front of a plane mirror at a distance of 6m and they step 3.5m towards the mirror; what will be the distance between him and the mirror? |
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Answer» image is FORMED in front of the mirror A VIRTUAL image is formed AWAY from the mirrorA virtual image is inverted a real image image is ERRECT |
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| 50. |
Complete and label the following diagram. Plz |
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Answer» currentcircular loopwiredivision of TWO loopsresistorammeter:) |
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